题目

 --- Do you have enough to ___________all your daily expenses?   --- Oh, yes, enough and to spare.     A．cover         B．spend          C．fill         D．offer 答案：A如图是小明探究“凸透镜成像规律”时观察到的现象，下列哪种光学仪器的成像原理与其相同（ ）A．投影仪B．照相机C．放大镜D．近视眼镜